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-rw-r--r--net/decnet/dn_fib.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index d332aefb0846..df4803437888 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -298,7 +298,8 @@ struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, struct nlattr *att
int type = nla_type(attr);
if (type) {
- if (type > RTAX_MAX || nla_len(attr) < 4)
+ if (type > RTAX_MAX || type == RTAX_CC_ALGO ||
+ nla_len(attr) < 4)
goto err_inval;
fi->fib_metrics[type-1] = nla_get_u32(attr);